107 
August 9, 1842. 
Richard Owen, Esq., Vice-President, in the Chair. 
The following paper, ‘‘ On the Blood-Corpuscles of the Ibex,” by 
George Gulliver, Esq., F.R.S., was read. 
Before my discovery of the singularly minute size of the blood- 
corpuscles of the Musk Deer*, those of the Goat were the smallest 
known. I have since found that the corpuscles of the Ibex are 
slightly smaller than those of the Goat, and therefore intermediate 
in size to the corpuscles of the Goat and those of the Musk Deer, 
as will be shown by the following measurements, which are given in 
vulgar fractions of an English inch. For the sake of comparison, 
the dimensions of the discs of the two latter animals are copied from 
my ‘ Tables of Measurements of the Blood-Corpuscles of Mammaliat.’ 
Ibex from Candia (Capra Caucasica, Guld.), 
1-7500 | : Pale Globules of the Blond, 
up 1-3200 Common size. 
roar oe 1-4000 Small ditto. 
age. oStCE: 1-2666 Large ditto. 
1-6752 ; 
1-6665 1-3200 Average ditio, 
1-9142 Small size. 
1-5650 Large ditto. 
1-7020 Average ditto. 
Common Goat (Capra Hircus, Linn.). 
1-6665 C Pale Globules of the Blood. 
1-6400 ommon i 
1-6000 s1zes. 1-3000 Common s1ze. 
3 " 1-3555 Small ditto. 
1-8000 Small size. 1-2666 Large ditto. 
1-5333 Large ditto. 
1-3032 itto. 
1-6866 Average ditto. 7 eet gto 
* See Med. Chir. Trans., vol. xxiii.; Dublin Med. Press, Nov. 27, 1839; 
Annals of Nat. History, Dec. 1839; and Lond. and Edin. Phil. Mag. of 
the same date. 
+ See Appendix to Gerber’s Anatomy. 
No. CXV.—Proceepines or THE ZOOL. Soc. 
